SPI System

This design shows two (2) SPI end point devices controlled by one (1) SPI Source. Serial Data Out (SDO) pin of the soruce is connected to both Serial Data In (SDI) pins of the end point devices. The SDO pins of the endpoint devices are connected to the SDI of the controler. All three devices share the same Serial Clock (SCK) signal and Chip Select (CS) indicates which endpoint is able to communicate data.